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Vishay General Semiconductor - Diodes Division SMCJ7.0CAHE3/57T
- Part No.:
- SMCJ7.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0CAHE3/57T.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,839
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Product details
Overview
SMCJ7.0CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V maximum clamping voltage (VC) at 125 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to safeguard automotive sensor interfaces, industrial I/O ports, and telecom line drivers against ESD and inductive switching transients.
For engineers reviewing the SMCJ7.0CAHE3/57T datasheet, SMCJ7.0CAHE3/57T pinout, SMCJ7.0CAHE3/57T application, or SMCJ7.0CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification for automotive use, low incremental surge resistance, UL 497B recognition, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 7.78–8.60 V (min/max) at 10 mA test current. Its clamping behavior is characterized by low dynamic impedance, enabling rapid suppression of transients up to 125 A without exceeding 12.0 V across the device under standardized 10/1000 μs surge conditions.
Thermally, it supports operation from –55 °C to +150 °C junction temperature, with RθJA = 75 °C/W and RθJL = 15 °C/W. The HE3 suffix confirms RoHS-compliance and AEC-Q101 qualification - critical for automotive-grade reliability in engine control units and ADAS sensor modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected lines. |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - ensures consistent bidirectional breakdown threshold across production lots. |
| VC @ IPPM | 12.0 V at 125 A - limits voltage seen by downstream ICs during worst-case 1500 W surge events. |
| PPPM | 1500 W - peak power handling capability under 10/1000 μs waveform; enables robust protection against lightning-induced surges. |
| ID @ VWM | 200 μA - low leakage ensures minimal impact on high-impedance sensor or communication lines. |
| TJ max. | +150 °C - supports under-hood automotive environments and industrial enclosures without derating. |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 8.13 mm footprint and 3.20 mm height; optimized for reflow and wave soldering. |
Pinout & Package
SMCJ7.0CAHE3/57T uses the SMC (DO-214AB) package - a molded, halogen-free, UL 94 V-0 compliant case with matte tin-plated leads. Bidirectional construction means no polarity marking; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge energy into the device during positive voltage excursions beyond VBR. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge energy into the device during negative voltage excursions beyond VBR; functionally identical to Anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics per stress test requirements. |
| UL 497B recognized | Approved as a protector under Underwriters Laboratories standard for telecom and data line safety. |
| Low clamping voltage (12.0 V) | Ensures protected ICs remain within absolute maximum ratings during 125 A transients. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns. |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity compliance in system-level testing. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between bus line and ground, absorbing surge energy before it reaches the PHY layer. Use Value: Maintains signal integrity below 12.0 V during 125 A surges, preventing latch-up or damage to ISO 11898-compliant transceivers. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to clamp induced spikes before they reach optocoupler or MCU GPIO. Use Value: Limits transient overvoltage to ≤12.0 V, ensuring reliable detection of valid logic states while surviving repeated 1500 W pulses. |
| Telecom Line Driver Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at connector interface, shunting energy to chassis ground. Use Value: Clamps differential-mode transients to <12.0 V, preserving signal eye diagram integrity and meeting GR-1089-CORE immunity requirements. | Use Scenario: Protecting microcontroller reset and analog sensing lines in washing machine motor drive boards from brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on low-voltage rails feeding Hall-effect sensors and reset supervisors. Use Value: Prevents false resets and ADC offset shifts caused by sub-μs transients, improving field reliability in Class B EMC environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CAHE3/52T | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM/VBR/VC specs. | Suitable for space-constrained consumer PCBs where 1500 W rating is not required. | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 2. |
| SMCJ7.0CAHM3/57T | Identical electrical specs; HM3 suffix denotes halogen-free + AEC-Q101 + RoHS, vs. HE3's RoHS + AEC-Q101 only. | Required for strict halogen-free compliance in EU automotive Tier 1 supply chains. | Choose HM3 if halogen-free material declaration is mandatory for your OEM program. |
Compared with SMBJ7.0CAHE3/52T, SMCJ7.0CAHE3/57T delivers 2.5× higher surge power handling in a slightly larger but thermally superior SMC package; versus SMCJ7.0CAHM3/57T, the HE3 variant meets AEC-Q101 and RoHS without halogen-free constraint - simplifying sourcing where HM3 is unavailable or cost-sensitive.
Availability
SMCJ7.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line driver circuits requiring stable component supply and AEC-Q101 traceability.
Supply support for SMCJ7.0CAHE3/57T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The SMCJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What does the "CA" suffix mean in SMCJ7.0CAHE3/57T?
The "CA" suffix in SMCJ7.0CAHE3/57T indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMCJ7.0A), it has no cathode marking and functions identically in either polarity, making it ideal for AC-coupled or differential signal lines such as RS-485 or CAN bus.
Is SMCJ7.0CAHE3/57T qualified for automotive applications?
Yes, SMCJ7.0CAHE3/57T is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for under-hood and cabin electronics in passenger vehicles and commercial fleets.
What is the maximum clamping voltage for SMCJ7.0CAHE3/57T during a surge event?
The maximum clamping voltage (VC) for SMCJ7.0CAHE3/57T is 12.0 V when subjected to its rated peak pulse current of 125 A under the standard 10/1000 μs waveform. This value is measured across the device terminals and represents the upper voltage limit imposed on protected circuitry during worst-case transient conditions.
Can SMCJ7.0CAHE3/57T replace SMCJ7.0A in an existing design?
No - SMCJ7.0CAHE3/57T is bidirectional while SMCJ7.0A is unidirectional, so direct replacement requires verification of circuit polarity and grounding topology. In unidirectional applications with defined cathode/anode routing, substituting the CA version may cause improper clamping or leakage paths; redesign review is essential before interchange.
What packaging format is used for SMCJ7.0CAHE3/57T?
SMCJ7.0CAHE3/57T is supplied in 7-inch diameter plastic tape and reel packaging, with a base quantity of 850 units per reel (ordering code "/57T"). This format supports high-speed pick-and-place assembly and complies with J-STD-002 and JESD 22-B102 solderability standards.
SMCJ7.0CAHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ7.0CAHE3/57T FAQ
1.How can I place an order for SMCJ7.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0CAHE3/57T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMCJ7.0CAHE3/57T reliable?
The price and inventory of SMCJ7.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ7.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ7.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0CAHE3/57T?
SMCJ7.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0CAHE3/57T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMCJ7.0CAHE3/57T?
For technical support, including SMCJ7.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ7.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0CAHE3/57T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMCJ7.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ7.0CAHE3/57T?
All SMCJ7.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0CAHE3/57T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMCJ7.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ7.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.0CAHE3/57T Tags
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